Combined type mutual inductor for new energy and installation and configuration method of combined type mutual inductor

Abstract

The invention relates to the technical field of mutual inductors, in particular to a combined mutual inductor for new energy and an installation and configuration method thereof.The combined mutual inductor comprises an annular current detection winding and a control base arranged at the bottom of the current detection winding, and an annular energy storage winding and a voltage electricity taking assembly are arranged on the two sides of the current detection winding respectively; the energy storage winding is used for obtaining electric energy and storing the electric energy in an energy storage circuit in the control base, and the voltage electricity taking assembly is used for clamping and piercing a to-be-detected cable to obtain a voltage signal. According to the invention, the driving disc provided with the spiral chute drives the plurality of electricity taking needle mechanisms to move radially at the same time, so that the to-be-detected cable is stably clamped and punctured to obtain a voltage signal, clamping is stable, dislocation of the cable and the electricity taking needles is avoided, and an electricity taking signal is stable.

Description

Technical Field

[0001] The present application belongs to the technical field of transformers, and specifically relates to a combined transformer for new energy and a method for installing and configuring the same. Background Art

[0002] The working principle of the mutual inductor is based on the law of electromagnetic induction, and the conversion of current or voltage is achieved through the interaction of magnetic fields between two or more coupled coils. The combined mutual inductor is a combination of a voltage mutual inductor and a current mutual inductor. The traditional combined mutual inductor is large in size and inconvenient to install and use because it integrates multiple sets of coils.

[0003] With the rapid development of renewable energy power generation, the number of wind and photovoltaic power plants has also expanded dramatically. Such renewable energy power plants have the characteristics of many branches and low voltage levels. The demand for combined transformers is also expanding rapidly. Based on the trend of intelligent power grids, a small, easy-to-install and digital combined transformer is needed.

[0004] An outdoor combined transformer with publication number CN115424817B is only equipped with a current-taking winding, and then the voltage signal is acquired through a voltage-taking puncture needle. However, this application cannot solve the problem of movement of the cable to be detected. Due to the difference in cable size, the cable cannot be firmly clamped. There is a risk of misalignment of the current-taking needle during the puncture of the cable, resulting in bending of the current-taking needle and unstable current-taking signals. Moreover, this application can only acquire analog signals and requires cooperation from other metering devices to acquire digital current and voltage signals, which does not conform to the trend of intelligent power grids. Summary of the invention

[0005] The present application provides a combined mutual inductor for new energy and an installation and configuration method thereof, so as to solve or partially solve the problems raised in the above-mentioned background technology.

[0006] The present application provides a combined transformer for new energy, including a ring-shaped current detection winding and a control base arranged at the bottom of the current detection winding, and a ring-shaped energy storage winding and a voltage power taking component are respectively arranged on both sides of the current detection winding; the energy storage winding is used to obtain electrical energy and store it in an energy storage circuit inside the control base, and the voltage power taking component is used to clamp and pierce the cable to be detected to obtain a voltage signal.

[0007] Preferably, a control chip, a wireless communication module, a sampling circuit, an energy storage circuit and a power supply circuit are arranged inside the control base.

[0008] Preferably, the voltage power taking component comprises a mounting plate and a driving plate, the mounting plate is fixedly connected to one side of the current detection winding, the driving plate is rotatably connected to the side of the mounting plate away from the current detection winding, a driving mechanism is arranged at the bottom of the driving plate, and the driving mechanism is fixedly connected to the control base; The mounting plate is provided with a plurality of guide grooves evenly arranged around its center line in a radial direction, and an electric needle mechanism is slidably inserted in the guide groove; a spiral groove is provided on the end surface of the driving plate close to the mounting plate, and a slider is provided on the top of the electric needle mechanism, and the slider is slidably inserted in the spiral groove; The driving mechanism is used for driving the driving disk to rotate.

[0009] Preferably, a driving gear ring is provided on the outer circumference of the driving disk, and the driving mechanism comprises at least a first driving motor and a driving gear, the output portion of the first driving motor is drivingly connected to the driving gear, and the driving gear is meshed with the driving gear ring.

[0010] Preferably, the electric needle extraction mechanism comprises a slide bar slidably inserted in the guide groove, the slider is arranged on the slide bar, the end of the slide bar close to the center side of the mounting plate is provided with a front probe, the sliding sleeve on the periphery of the front probe is provided with a clamping sleeve, the end of the clamping sleeve away from the tip of the front probe is provided with a clamping spring, one end of the clamping spring is connected to the end of the slide bar, and the other end is connected to the clamping sleeve; An arc-shaped clamping plate is arranged on one side of the clamping sleeve away from the clamping spring, and the front probe movably passes through the clamping plate.

[0011] Preferably, the number of the electrical extraction needle mechanisms is 3.

[0012] Preferably, the control base is provided with an installation configuration component, the installation configuration component includes a display operation unit arranged on one side of the control base, a bottom bracket is provided at the bottom of the display operation unit, the bottom bracket extends to the bottom of the control base, a multi-stage telescopic rod and a cable driving mechanism are embedded in the bottom of the control base, and the end of the telescopic part of the multi-stage telescopic rod and the cable end of the cable driving mechanism are connected to the bottom bracket.

[0013] Preferably, there are two multi-stage telescopic rods, both of which are arranged on a side of the bottom of the control base away from the display operation unit, and the cable driving mechanism is arranged at the center of the bottom of the control base.

[0014] Preferably, the bottom of the bottom bracket is kept horizontal and flush with the bottom of the display and operation unit.

[0015] The present application also provides a method for installing and configuring a combined transformer for new energy, based on the combined transformer for new energy described above, comprising the following steps: Step 1: The cable to be tested is passed through the center of the current detection winding, energy storage winding, and voltage power supply component, and both ends of the cable are connected and powered on; Step 2: Connect the control chip via the wireless communication module to operate the cable drive mechanism of the installation configuration component to drive the display operation unit to descend; Step 3: The user configures the parameters of the transformer through the display operation unit, and adjusts the position of the transformer on the cable by extending the multi-stage telescopic rod. Finally, the user controls the voltage power supply component to clamp the cable and obtain the voltage signal through the display operation unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present application drives a plurality of electric sampling needle mechanisms to move radially at the same time by means of a driving disk provided with a spiral groove, thereby firmly clamping the cable to be tested and piercing the cable to obtain a voltage signal. The clamping is firm, thus avoiding misalignment of the cable and the electric sampling needle, and the electric sampling signal is stable.

[0017] (2) The present application drives the extension and retraction of the multi-stage telescopic rod by installing a cable drive mechanism of the configuration component, which not only realizes the raising and lowering of the display operation unit, facilitating parameter configuration, but also facilitates the use of the descending multi-stage telescopic rod to adjust the position of the transformer on the cable to be tested, which is beneficial to the stable power supply and convenient configuration of the voltage power supply component.

[0018] (3) This application utilizes energy storage windings to obtain induced electrical energy, avoiding the need to connect power lines and adapting to the use of outdoor renewable energy electric fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 This is the overall structural front view of this application. Figure 2 This is the overall structure rear view of this application. Figure 3 This is a side view of the overall structure of this application. Figure 4 This is a partial enlarged view A of this application. Figure 5 This is a partial enlarged view B of this application. Figure 6 This is a side sectional view of the voltage taking component of the present application, Figure 7 This is a front cross-sectional view of the voltage taking component of this application. Figure 8 This is a schematic diagram of the structure of the electroacupuncture mechanism of this application. Fig. 9 This is a schematic diagram of the implementation of this application.

[0021] In the figure: 1. Current detection winding, 2. Control base, 3. Energy storage winding, 4. Voltage power taking component, 5. Installation configuration component; 41. mounting plate, 42. driving plate, 43. driving mechanism, 51. display operation unit, 52. multi-stage telescopic rod, 53. bottom bracket, 54. cable driving mechanism; 411, guide groove, 412, electroacupuncture needle mechanism, 421, spiral slide groove, 422, drive gear ring; 4121. Sliding rod, 4122. Front probe, 4123. Clamping sleeve, 4124. Clamping spring. DETAILED DESCRIPTION

[0022] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0023] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present application.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Example 1 like Figures 1 to 9 As shown, the present application provides a combined transformer for new energy, comprising a ring-shaped current detection winding 1 and a control base 2 arranged at the bottom of the current detection winding 1, and a ring-shaped energy storage winding 3 and a voltage power taking component 4 are respectively arranged on both sides of the current detection winding 1; The energy storage winding 3 is used to obtain electrical energy and store it in the energy storage circuit inside the control base 2, and the voltage power acquisition component 4 is used to clamp and pierce the cable to be detected to obtain a voltage signal.

[0026] Specifically, the control base 2 is internally provided with a control chip, a wireless communication module, a sampling circuit, an energy storage circuit and a power supply circuit.

[0027] The present application obtains the induced current on the cable to be detected through the energy storage winding 3, stores the electrical energy using the energy storage circuit, and then supplies power to the control chip, wireless communication module and voltage power taking component 4 through the power supply circuit. The current signal is obtained through the current detection winding 1, and the voltage signal is obtained through the voltage power taking component 4. The current and voltage signals are shaped, filtered, and AD converted by the sampling circuit and input into the control chip to obtain the current value and voltage value, which are then transmitted to the remote end through the wireless communication module.

[0028] It is worth noting that after obtaining the voltage signal, it is necessary to obtain the voltage signals of other lines or the neutral line to generate an accurate voltage value, and the control base 2 is provided with an external signal access terminal.

[0029] Specifically, the voltage power taking component 4 includes a mounting disk 41 and a driving disk 42, the mounting disk 41 is fixedly connected to one side of the current detection winding 1, the driving disk 42 is rotatably connected to the side of the mounting disk 41 away from the current detection winding 1, and a driving mechanism 43 is provided at the bottom of the driving disk 42, and the driving mechanism 43 is fixedly connected to the control base 2; The mounting plate 41 is evenly provided with a plurality of guide grooves 411 radially around its center line, and an electric needle mechanism 412 is slidably inserted in the guide groove 411. A spiral groove 421 is provided on the end surface of the driving plate 42 close to the mounting plate 41, and a slider is provided on the top of the electric needle mechanism 412, and the slider is slidably inserted in the spiral groove 421. The driving mechanism 43 is used to drive the driving disk 42 to rotate.

[0030] The spiral slide groove 421 is an Archimedean equidistant spiral. The driving mechanism 43 drives the driving disk 42 to rotate, and the slider and the spiral slide groove 421 move relative to each other, forcing it to move radially along the guide groove 411, thereby first stably clamping the cable to be tested that is inserted into the center of the voltage collection component 4 and then piercing it to collect electricity.

[0031] The present application does not limit the specific structure of the driving mechanism 43. Typically, a driving gear ring 422 is provided on the outer periphery of the driving disk 42. The driving mechanism 43 includes at least a first driving motor and a driving gear. The output portion of the first driving motor is transmission-connected to the driving gear, and the driving gear is meshed with the driving gear ring 422. The first driving motor drives the driving gear to rotate and then drives the driving disk 42 to rotate.

[0032] Preferably, if Figures 1 to 3As shown, the current detection winding 1, the energy storage winding 3, the mounting disk 41, and the driving disk 42 are all wrapped with a protective shell, and the driving mechanism 43 is also provided with a protective shell on the outside. The connecting part between the driving mechanism 43 and the driving disk 42 is provided with a connecting groove to facilitate the transmission connection and the free rotation of the driving disk 42.

[0033] Preferably, the electric needle extraction mechanism 412 includes a sliding rod 4121 slidably inserted in the guide groove 411, the sliding block is arranged on the sliding rod 4121, and a front probe 4122 is arranged at the end of the sliding rod 4121 close to the center side of the mounting plate 41, and a clamping sleeve 4123 is arranged on the outer peripheral sliding sleeve of the front probe 4122, and a clamping spring 4124 is arranged at the end of the clamping sleeve 4123 away from the tip of the front probe 4122, one end of the clamping spring 4124 is connected to the end of the sliding rod 4121, and the other end is connected to the clamping sleeve 4123, and an arc-shaped clamping plate is arranged on the side of the clamping sleeve 4123 away from the clamping spring 4124, and the front probe 4122 moves through the clamping plate.

[0034] When the electric current extraction needle mechanism 412 is driven by the driving disk 42 to move toward the cable to be detected, a number of arc-shaped clamping plates first contact the cable to be detected, and then stably clamp it. As the electric current extraction needle mechanism 412 continues to move, the clamping spring 4124 is compressed, and the front probe 4122 leaks out of the clamping plate, thereby piercing the cable to obtain the voltage signal.

[0035] Multiple evenly distributed arc-shaped clamping plates are conducive to stably clamping the cable, and multiple front probes 4122 facilitate stable acquisition of voltage signals.

[0036] Preferably, the number of the electricity extraction needle mechanisms 412 is three.

[0037] Preferably, the control base 2 is provided with an installation configuration component 5, and the installation configuration component 5 includes a display operation unit 51 arranged on one side of the control base 2, and a bottom bracket 53 is arranged at the bottom of the display operation unit 51, and the bottom bracket 53 extends to the bottom of the control base 2, and a multi-stage telescopic rod 52 and a cable driving mechanism 54 are embedded in the bottom of the control base 2, and the end of the telescopic part of the multi-stage telescopic rod 52 and the cable end of the cable driving mechanism 54 are connected to the bottom bracket 53.

[0038] The display operation unit 51 includes an integrated display and operation buttons, and the cable driving mechanism 54 is electrically connected to the control chip. Based on the wireless communication module, the user can use a mobile terminal or other remote control device to enable the control chip of the mutual inductor located at a high place to control the cable driving mechanism 54 to release the cable, so that the multi-stage telescopic rod 52 and the bottom bracket 53 extend and descend due to their own gravity, which is convenient for the user to configure the transmission address, transmission frequency, power failure warning and other parameters through the display operation unit 51, and also convenient for the user to adjust the position of the mutual inductor on the cable to be detected through the multi-stage telescopic rod 52.

[0039] Specifically, there are two multi-stage telescopic rods 52 , both of which are arranged at a side of the bottom of the control base 2 away from the display operation unit 51 , and the cable driving mechanism 54 is arranged at the center of the bottom of the control base 2 .

[0040] Preferably, the bottom of the bottom bracket 53 is kept horizontal and flush with the bottom of the display operation unit 51, which is conducive to the device standing firmly when placed.

[0041] Typically, the wireless communication module is a 4G or 5G wireless communication module.

[0042] The cable driving mechanism 54 is a commonly used structure in the mechanical field and will not be described in detail in this application.

[0043] Example 2 On the basis of Example 1, the present application further provides a method for installing and configuring a combined transformer for new energy, based on the combined transformer for new energy as described in Example 1, comprising the following steps: Step 1: The cable to be detected is passed through the center of the current detection winding 1, the energy storage winding 3, and the voltage power taking component 4, and both ends of the operation cable are connected and powered on; Step 2: Connect the control chip via the wireless communication module to manipulate the cable driving mechanism 54 of the installation configuration component 5 to drive the display operation unit 51 to descend; Step 3: The user configures the parameters of the transformer through the display operation unit 51, and adjusts the position of the transformer on the cable through the extended multi-stage telescopic rod 52, and finally controls the voltage power supply component 4 to clamp the cable and obtain the voltage signal through the display operation unit 51.

[0044] The implementation methods of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A combined transformer for new energy, comprising a ring-shaped current detection winding (1) and a control base (2) arranged at the bottom of the current detection winding (1), characterized in that: An annular energy storage winding (3) and a voltage power taking component (4) are respectively arranged on both sides of the current detection winding (1); The energy storage winding (3) is used to obtain electrical energy and store it in an energy storage circuit inside the control base (2), and the voltage power acquisition component (4) is used to clamp and pierce the cable to be detected to obtain a voltage signal.

2. A combined transformer for new energy according to claim 1, characterized in that: The control base (2) is internally provided with a control chip, a wireless communication module, a sampling circuit, an energy storage circuit and a power supply circuit.

3. A combined transformer for new energy according to claim 2, characterized in that: The voltage-taking component (4) comprises a mounting plate (41) and a driving plate (42), wherein the mounting plate (41) is fixedly connected to one side of the current detection winding (1), and the driving plate (42) is rotatably connected to a side of the mounting plate (41) away from the current detection winding (1), and a driving mechanism (43) is provided at the bottom of the driving plate (42), and the driving mechanism (43) is fixedly connected to the control base (2); The mounting plate (41) is provided with a plurality of guide grooves (411) evenly arranged radially around its center line, an electric current extraction needle mechanism (412) is slidably inserted in the guide groove (411), a spiral slide groove (421) is provided on the end surface of one side of the driving plate (42) close to the mounting plate (41), a slider is provided on the top of the electric current extraction needle mechanism (412), and the slider is slidably inserted in the spiral slide groove (421); The driving mechanism (43) is used to drive the driving disk (42) to rotate.

4. A combined transformer for new energy according to claim 3, characterized in that: The outer periphery of the driving disk (42) is provided with a driving gear ring (422); the driving mechanism (43) comprises at least a first driving motor and a driving gear; the output portion of the first driving motor is transmission-connected to the driving gear; and the driving gear is meshed with the driving gear ring (422).

5. The combined transformer for new energy according to claim 3, characterized in that: The electric needle extraction mechanism (412) comprises a slide bar (4121) slidably inserted in the guide groove (411), the slider is arranged on the slide bar (4121), the end of the slide bar (4121) close to the center side of the mounting plate (41) is provided with a front probe (4122), the outer peripheral sliding sleeve of the front probe (4122) is provided with a clamping sleeve (4123), the end of the clamping sleeve (4123) away from the tip of the front probe (4122) is provided with a clamping spring (4124), one end of the clamping spring (4124) is connected to the end of the slide bar (4121), and the other end is connected to the clamping sleeve (4123); An arc-shaped clamping plate is provided on one side of the clamping sleeve (4123) away from the clamping spring (4124), and the front probe (4122) movably passes through the clamping plate.

6. A combined transformer for new energy according to claim 5, characterized in that: The number of the electricity extraction needle mechanisms (412) is 3.

7. A combined transformer for new energy according to claim 2, characterized in that: The control base (2) is provided with a mounting configuration component (5), the mounting configuration component (5) comprising a display operation unit (51) arranged on one side of the control base (2), a bottom bracket (53) being arranged at the bottom of the display operation unit (51), the bottom bracket (53) extending to the bottom of the control base (2), a multi-stage telescopic rod (52) and a cable driving mechanism (54) being embedded at the bottom of the control base (2), the telescopic end of the multi-stage telescopic rod (52) and the cable end of the cable driving mechanism (54) being connected to the bottom bracket (53).

8. A combined transformer for new energy according to claim 7, characterized in that: There are two multi-stage telescopic rods (52), both of which are arranged on a side of the bottom of the control base (2) away from the display operation unit (51), and the cable driving mechanism (54) is arranged at the center of the bottom of the control base (2).

9. A combined transformer for new energy according to claim 8, characterized in that: The bottom of the bottom bracket (53) remains horizontal and is flush with the bottom of the display operation unit (51).

10. A method for installing and configuring a combined transformer for new energy, based on the combined transformer for new energy as claimed in claim 7, characterized in that: The steps include: Step 1: The cable to be detected is passed through the center of the current detection winding (1), the energy storage winding (3), and the voltage power supply component (4), and both ends of the operating cable are connected and powered on; Step 2: Connecting the control chip via the wireless communication module, manipulating the cable driving mechanism (54) of the installation configuration component (5) to drive the display operation unit (51) to descend; Step 3: The user configures the parameters of the transformer through the display operation unit (51), and adjusts the position of the transformer on the cable through the extended multi-stage telescopic rod (52), and finally controls the voltage power supply component (4) to clamp the cable and supply power through the display operation unit (51) to obtain a voltage signal.

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